[CentOS] what wrong about my ipv6 address

Tue Mar 8 16:25:39 UTC 2011
Steve Clark <sclark at netwolves.com>

On 03/08/2011 10:42 AM, ann kok wrote:
> Hi
>
> Thank you for your help
>
> I type the ifconfig -a
>
> there is ipv6 address
>
> inet6 fe80::20c:29ff:fe3c:92a1/64 scope link tentative
>
> i also add one
>
> inet6 2001:db8:cafe:1111::12/64 scope global tentative
>
> but both are not pingable by ping6
>
>
> Here are commands you suggested me to run
>
> route -n -A inet6
> Kernel IPv6 routing table
> Destination                                 Next Hop                                Flags Metric Ref    Use Iface
> 2001:db8:cafe:1111::/64                     ::                                      U     256    0        0 eth0
> fe80::/64                                   ::                                      U     256    0        0 eth0
> ::1/128                                     ::                                      U     0      2        1 lo
> ff00::/8                                    ::                                      U     256    0        0 eth0
>
>
> ip -6 route
> 2001:db8:cafe:1111::/64 dev eth0  metric 256  expires 21334307sec mtu 1500 advmss 1440 hoplimit 4294967295
> fe80::/64 dev eth0  metric 256  expires 21330690sec mtu 1500 advmss 1440 hoplimit 4294967295
>
>
> I can't ping ipv6.google.com but I should ping the eth0 ipv6 as it is host ip address. Right?
>
> Thank you for your help.
>
>
>
>
> --- On Tue, 3/8/11, Jakub Jedelsky<jakub.jedelsky at gmail.com>  wrote:
>
>    
>> From: Jakub Jedelsky<jakub.jedelsky at gmail.com>
>> Subject: Re: [CentOS] what wrong about my ipv6 address
>> To: "CentOS mailing list"<centos at centos.org>
>> Received: Tuesday, March 8, 2011, 3:36 AM
>> Dne 7.3.2011 20:56, ann kok
>> napsal(a):
>>      
>>> Hi
>>>
>>> I used the command "ip -6 addr add
>>>        
>> 2001:DB8:CAFE:1111::12/64 dev eth0"
>>      
>>> to add ipv6 address and can see it in ifconfig
>>>
>>> but can't ping it
>>>
>>> Why?
>>>
>>> Thank you
>>>
>>> # ping6 2001:db8:cafe:1111::12
>>> PING 2001:db8:cafe:1111::12(2001:db8:cafe:1111::12) 56
>>>        
>> data bytes
>>      
>>> > From ::1 icmp_seq=1 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=2 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=3 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=5 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=6 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=7 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=9 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=10 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>> > From ::1 icmp_seq=11 Destination unreachable:
>>>        
>> Address unreachable
>>      
>>>
>>>        
>> hi,
>>
>> have you correctly set gateway? Send `ip -6 route` and
>> `route -n -A
>> inet6` to us. What about to ping ipv6.google.com from this
>> pc?
>> Where did you run ping command? Have you IPv6 enabled
>> there? "From ::1"
>> looks like something is misconfigured..
>>
>> JJ
>> _______________________________________________
>> CentOS mailing list
>> CentOS at centos.org
>> http://lists.centos.org/mailman/listinfo/centos
>>
>>      
>
> _______________________________________________
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> CentOS at centos.org
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>
>    
can you ping6 ::1 ?

what does ip6tables -L -n
show?

Have you looked at
http://tldp.org/HOWTO/Linux+IPv6-HOWTO/
???


-- 
Stephen Clark
*NetWolves*
Sr. Software Engineer III
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.clark at netwolves.com
http://www.netwolves.com
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